Add multiple Layer files in subdirectories to mxd using python [closed]

Question

I have more than 300 layer files located in many sub-Folders and sub-sub-Folders. All Sub Folders are located in one large directory.I read Use python to add layers to TOC and I try, with arcpy, to detect all the layers and add them to mxd. Is it possible?

Answer 1

If you work with ArcGIS 10.1 SP1 or above, you can use the arcpy.da.Walk() function:

import arcpy, os

workspace = r"C:\directory"
mxd = arcpy.mapping.MapDocument(r"C:\Map.mxd")
df = arcpy.mapping.ListDataFrames(mxd, "*")[0]

walk = arcpy.da.Walk(workspace, datatype="Layer")

for dirpath, dirnames, filenames in walk:
    for filename in filenames:
        arcpy.mapping.AddLayer(df, arcpy.mapping.Layer(os.path.join(dirpath, filename)))

mxd.save()